baber/WOPTO huggingface dataset:
Patent GB-658373-A (GB)
Title: Improvements in and relating to bearing mountings
IPC: F16C27/06
Filed: 1949-08-10
Abstract: 658,373. Yielding bearing supports. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 10, 1949, No. 20837. Convention date, Aug. 21, 1948. [Class 12 (i)] A bearing is supported in a housing 2 by means of an annular ring 13 of resilient material seated in an annular groove in the housing, the inner surface of the ring being eccentric with respect to its outer surface so that the section of the ring of maximum thickness forces the opposite side of the bearing against the wall of the housing. The outer surface of the ring is curved transversely and the inner surface is substantially flat..
Patent GB-1013964-A (GB)
Title: Friction welding
IPC: B23K20/12
Filed: 1963-05-24
Abstract: 1,013,964. Welding by pressure. AMERICAN MACHINE & FOUNDRY CO. May 24, 1963 [May 24, 1962], No. 20849/63. Heading B3R. In friction welding workpieces a workpiece is rotated relatively to a preheating block while in contact therewith and the block is subsequently removed from contact with the work-  piece. A workpiece 14 of copper is rotated and a block 16 of steel or copper is pressed against the workpiece 14 by an aluminium workpiece 15 until the workpiece 14 is frictionally preheated. The workpiece 15 is retracted from the block and the latter is removed from between. the workpieces. The aluminium workpiece 15 is then pressed against the rotating and preheated copper workpieee 14 until the welding temperature is reached when rotation is rapidly stopped and the workpieces are still pressed together. A much smaller upset than normal results.
Patent GB-1058729-A (GB)
Title: Improvements to acid emulsions of hydrocarbons
IPC: C08K5/053
Filed: 1964-05-20
Abstract: The low temperature stability of an acid emulsion of hydrocarbons and/or petroleum resins is improved by adding 0.1 to 15% of glycerine and/or ethylene glycol.  The emulsion may include 0.01 to 10% hydrochloric, formic or acetic acid and 0.1 to 5% cationic emulsifier (examples given).  In manufacture, the water, emulsifier and acid are circulated and the hydrocarbon (e.g. bitumen) injected. A mixture of water and the anti-freeze is then added.  The resin is produced by catalytic polymerization of steam-cracked petroleum distillate or of olefins and diolefins, and may be fluxed with oil.  The emulsions contain 50 or 60% hydrocarbon or resin and are used for roads, weather proofing and agricultural mulches.ALSO:The low temperature stability of an acid emulsion of hydrocarbons and/or petroleum resins is improved by adding 0.1 to 15% of glycerine and/or ethylene glycol. The emulsion may include 0.01 to 10% hydrochloric, formic or acetic acid and 0.1 to 5% cationic emulsifier (examples given).  In manufacture, the water, emulsifier and acid are circulated and the hydrocarbon (e.g. bitumen) injected.  A mixture of water and the anti-freeze is then added.  The resin is produced by catalytic polymerisation of steam-cracked petroleum distillate or of olefins and diolefins, and may be fluxed with oil.  The emulsions contain 50 or 60% hydrocarbon or resin and are used for roads, weather proofing and agricultural mulches.
Patent GB-299922-A (GB)
Title: Improvements in and relating to screens or filters for high-power lights
IPC: F21V5/00
Filed: 1927-08-08
Abstract: 299,922. Evans, W. E., (S³hr, R. F. H.). Aug. 8. 1927. Bulbs.-An electric lamp bulb for vehicle lamps or other high power lights is sand blasted or etched, so as to form clear lines of minute width or small clear spaces of minute area, through which the light passes without obstruction, interspersed with small translucent or matted points or spaces through which the light is diffused, the size and distribution of which causes the bulb to present the appearance of, and act upon the light rays after the manner of, a process or optical screen. A sand blast device may be used with a grid or net of wire gauze or strong wire of very close mesh, or with a finely perforated plate. When etching by hydrofluoric acid, the parts to be left transparent may be coated with a resist lacquer or the like applied by means of a stamp or stencil. Alternatively, the entire surface of the bulb may be sand blasted or etched, and the transparent areas then obtained by painting a coloured or colourless lacquer through a stencil plate or wire net. The bulb may be made of clear or yellow or other lightly coloured glass, either smooth or with a ribbed, corrugated, or other uneven or figured surface. The entire surface of the bulb may be covered with translucent and transparent lines e, f, as shown in Fig. 1, or the lower half or other portion of the bulb may be left transparent or treated so as to be less diffusing than the upper half or other portion. In the form shown in Fig. 5 the screened portion c extends slightly into the lower half of the bulb at the centre thereof, and the unscreened portion b extends into the upper half on both sides d of the screened portion so that the filament itself remains screened. The portion c may be bounded by a circular or other central line and side lines which may be curved or tangential and inclined up to 60‹ to the horizontal.
Patent GB-502322-A (GB)
Title: Improvements in aircraft construction
IPC: B64C3/00
Filed: 1938-07-14
Abstract: 502,322. Aircraft structures. KAMMER, G. S. July 14,1938, No. 20957: [Class 4] A hollow aerofoil is reinforced by plate members extending perpendicularly from the lower to the upper aerofoil covering, each member being bent to constitute substantially straight sections running alternately parallel and perpendicular to the centre line of the aerofoil, the adjacent members being connected together at the bends. The structure comprises a number of similar members a, b each continuous from the leading to the trailing edge and bent to provide a number of rib sections 1, 3, 6, 7 and spar sections 2, 4, 6, 8. The rib sections have lightening holes and all sections are flanged at the margins for attachment of the wing covering; The several sections may be attached by welding at the abutting edges or by means such as shown in Fig. 3 or Fig. 4. The members may be punched and bent to shape in a single operation. According to a modification the rib and spar 'portions may differ in length.
Patent GB-669801-A (GB)
Title: Improvements in or relating to apparatus for suitable for use in compacting hides
IPC: C14B1/38
Filed: 1950-08-25
Abstract: 669,801. Leather - working machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. Aug. 25, 1950 [Aug. 26, 1949; Feb. 24, 1950], No. 21036/50. Class 76. Apparatus for compacting and burnishing hides comprises means, e.g. rolls 170, 172, which feed the work W between anvils 60 and workcompacting means 132 movable towards and away from the anvils. Roll 172 has a hard smooth surface and rotates at a different peripheral speed from resiliently-surfaced roll 170, in order to burnish one side of the hide. Similar rolls 194, 196 are arranged at the rear of the apparatus. The lower rolls 172, 196 are mounted on arms 182, 199, eccentrically pivoted at 188, 200, and urged towards the upper rolls by spring means. The anvils 60 are resiliently mounted by means of springs 50 and are arranged in two staggered rows of twenty transversely to the direction of feed. Apertured plates 72, 114 guide the work. The compacting members 132 are reciprocated vertically in groups of five, through arms 162, 156, 150 and links 144, by means of an eccentric arrangement 166 mounted on a driven shaft 168. Wedges 30, adjusted by moving a bolt 86 and held in position by hand wheels 36, 90, serve to vary the clearance between the anvils and the compacting members. The work-conducting surfaces of the anvils are smaller than those of the compacting means measured in the direction of feed. In a modification the compacting is effected by bars attached to groups of the reciprocating members. The anvils may be constructed with pivoted overlapping T-shaped lower faces so as to avoid the formation of lines on the work.
Patent GB-597455-A (GB)
Title: Improvements relating to recuperator tubes
IPC: F28F3/00
Filed: 1945-08-20
Abstract: 597,455. Heat-exchange elements. LOWE, J. S. Aug. 20, 1945, No. 21226. [Class 64 (iii)] In a recuperator tube having fins or ribs such as b<1> on the inside wall which are parallel to the axis of the tube and fins or ribs such as a<2> on the outside wall which are at right-angles to the tube axis, the ribs are corrugated or waved along their length. Each tube may be made of cast iron or a suitable alloy and is made in' two similar plate-like sections secured by flanges.
Patent GB-966581-A (GB)
Title: Improvements in or relating to document copying apparatus
IPC: G03B27/24
Filed: 1961-06-13
Abstract: 966,581. Copying devices. KODAK Ltd. June 13, 1961 [June 13, 1960], No. 21236/61. Heading G2A. A document copying device has a transporting means for advancing a matrix and a sheet in intimate contact therewith during movement of the transport means through a predetermined cycle, and a sheet stripping means, the operative position of which is adjustable for stripping the sheet from the matrix at a variable position along the path of movement of the stripping means. In the embodiment shown a matrix 9 and copy sheet 34 are transported on a drum 8 mounted on a rotatable shaft 16 and the copy sheet is then stripped off by stripper 7,11. The stripper is resiliently mounted on a lever 13 by means of a pivot pin 12 and spring 14; lever 13 is rotatably mounted on the shaft 16 and has a series of stops 17, 18 (only two shown) at the other end. During the initial movement of the drum the stripper is also rotated, by means of a cam tooth 36 on the drum engaging a lug 37 in the lever 13, and is inoperative. When one of the steps abuts a stop 33 the lever 13 is held stationary, lug 37 rides over the circular edge of cam 26 and the copy sheet is stripped off as the drum rotates. When the lug 37 falls on to surface of cam 26 the stripper and lever 13 are rotated into the inoperative position shown by spring 19. The distance the drum moves before the stripper becomes operative is determined by which of steps 17, 18 is adjacent stop 33 and this stop is mounted on a rotatable lever 28. Specifications 939, 691 and 966, 582 are referred to.
Patent GB-1036448-A (GB)
Title: Method of making articles of crystalline polystyrene containing a plasticizer
Inventor: SAUNDERS FRANK LINWOOD
IPC: D01F6/20
Filed: 1963-05-28
Abstract: Articles of isotactic polystyrene having enhanced crystalline rates are made by blending isotactic polystyrene with at least 1% of a plasticizer which is a polymer of styrene, o- or p-chlorostyrene, p-bromostyrene, a -methylstyrene, p-methyl-a -methylstyrene, 3,4-dichloro-a -methylstyrene and/or a mineral oil of b.p. at least 200 DEG  C. and consisting mainly of saturated aliphatic hydrocarbons and forming the mixture, e.g. at 100-300 DEG  C., into an article which is then annealed at 100-200 DEG  C. for 1/2 -2 hours to effect crystallization.  The plasticizer may be a colourless mineral oil of viscosity 10-71 cs. at 38 DEG  C., a -methylstyrene dimer or poly-a -methylstyrene of viscosity 100-1000 cp. at 60 DEG  C.
Patent GB-273927-A (GB)
Title: Improvements in apparatus for regulating speed variations in power-engines exposed to varying load
IPC: G05D13/00
Filed: 1926-08-28
Abstract: 273,927. Eriksen, J. E. Aug. 28, 1926. Centrifugal and inertia governors.-A combined inertia and centrifugal governor comprises, as described in Specification 231,825, a shaft mounted in a bearing 2 and a sleeve 3 rotatably mounted on the shaft and carrying a belt pulley 4 fast and a flywheel 5 loose thereon. Pins 6 on the belt pulley carry spring-controlled centrifugal bodies 7 formed as double levers with noses 9 projecting inwards, so that, when the bodies 7 move under centrifugal force, the noses 9 co-operate with notches 8 to turn the flywheel relatively to the shaft. This motion is shared by a toothed member 12 on the hub 10 of the flywheel and is communicated to a segment 13 supported by pins 14 on a yoke 11 carried by the sleeve 3. The motion is further transmitted by a rod to a slide 16 which is designed to transmit fluid pressure to a piston 17 normally held forward by a spring 18 suitable ports being formed in the casing in which the slide works.
Patent GB-336244-A (GB)
Title: Proofing leather, textiles, wall-paper, wood and like materials against fungoid infections
Filed: 1929-05-01
Abstract: 336,244. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). May 1, 1929. Fungicides.-Leather, wall-paper, wood, textiles other than woollen fabrics, and like materials are proofed against mildew or other fungi by treatment with a hydroxy-diarylmethane, or hydroxy-triarylmethane, containing one or more monovalent halogen phenol residues. According to an example ox-hide is treated with a caustic alkali solution of the condensation product from formaldehyde and two molecular proportions of p-chlorophenol, dilute sulphuric acid being added to neutralize the alkali. Other compounds specified are methylene-bis-2-4-dichlorophenol, condensation products from formaldehyde and mchlorophenol, 6-chloro-3-cresol, or 6, chloro-2- cresol, condensation products from p-chlorobenzaldehyde or p-diethylamino-benzaldehyde and two molecular proportions of p-chlorophenol, a product of the formulaprepared by treating the condensation product from cyclohexanone and phenol with a potassium bromate-bromide solution or with bromine dissolved in glacial acetic acid, and a compound of the formula prepared by heating 2-6-dimethylol-4-chlorophenol with 4-chlorophenol in the, presence of 50 per cent sulphuric acid at 50-60‹ C. for 18 hours, filtering, washing and removing excess chlorophenol by means of steam. Specifications 6286/14, 316,900, 330,893 and 330,894, [all in Class 2 (iii), Dyes &c.], are referred to. The Provisional Specification refers also to a brominated condensation product from acetone and two molecular proportions of phenol.
Patent GB-570477-A (GB)
Title: Improvements relating to lubricating devices for internal combustion engine cylinders
IPC: F01M5/00
Filed: 1943-12-22
Abstract: 570,477. Turning-gear. MILLAR, R. D. Dec. 22, 1943, No. 21436. [Class 7 (v)] Oil from the normal lubricating system is forced past a valve D into a chamber A, raising a spring- pressed piston F and the oil so stored is forced by the spring through a passage M, terminating in the cylinder wall C within the area swept by the top piston ring, when a solenoid L in parallel with the starter motor circuit is excited to open a valve in a passage c<1> leading from the chamber A to the passage M. The normal position of the piston E is adjustable to vary the charge of oil. In the case of a sleeve valve engine, the oil is delivered to the annular space between the junk head and the cylinder.
Patent GB-853319-A (GB)
Title: Improvements in or relating to safety valve devices for gas-heated or gas burning appliances
IPC: F23N5/10
Filed: 1957-07-08
Abstract: 853,319. Valves. JUNKERS & CO. G.m.b.H. July 8, 1957 [July 14, 1956], No. 21484/57. Class 135. A safety device for gas-heated appliances has a main valve 34 upstream of an auxiliary valve 49 axially displaceable on a control stem 40, 42 which is longitudinally displaceable and carries a stop 47 against which the auxiliary valve is held by a spring 48, depression of the stem into the valve casing causing the auxiliary valve to close, the main valve to open and an armature 33 on the main valve to contact an electromagnet 26 which retains the main valve open when a thermal element 29 is heated by the main burner 24 or pilot burner 18 and energizes the magnet, the valve closing should the burner go out, and the stem is mounted in the valve casing for both axial and rotatable displacement and is guided along a helical path 45 by a transverse pin 41 carried by the stem. A control stem actuating knob 40 has the transverse pin 41 engaging a cam surface 45 in a sleeve 37 and screwed in a casing cap 36 and also engaging in an annular recess in the control stem whereby, when the main valve is held open, the knob is released to allow the auxiliary valve to open for gas to flow to the main burner and then rotated so that the cam axially adjusts the control stem and adjusts the opening of the auxiliary valve. The cam may have a notch and a flat for engaging the transverse pin and holding the valve 49 respectively in a position allowing just sufficient gas to ignite the main burner or closed. In this position or when closed, the control stem may hold the main valve just open and the cam surface is of such a slope that the impact of the main valve closing, on flame extinction, allows the spring 43 to raise the valve 49 fully from its seat 13. Specification 474,271 is referred to.
Patent GB-1448482-A (GB)
Title: Semiconductor devices
IPC: H01L21/285
Filed: 1973-05-05
Abstract: 1448482 Semi-conductor devices FERRANTI Ltd 3 May 1974 [5 May 1973] 21501/73 Heading H1K A semi-conductor device has a Schottky barrier 10 at the interface between one region 11 of monocrystalline silicon with a resistivity greater than 0À1 ohm-cm. and another region 13 of polycrystalline silicon with a resistivity less than 1À0 ohm-cm. The layer 13 is deposited from a reaction atmosphere including silane at 800‹ C. through an aperture 14 in a silicon oxide passivating layer 15 and preferably has a resistivity of 0À01 ohm-cm. The layer 13 may be of P-type conductivity and the region 11 of N- type or the layers may be of the same type. A deposited metal electrode 17 makes ohmic contact with the layer 13.
Patent GB-978168-A (GB)
Title: Improvements relating to automatic vehicle speed control apparatus
IPC: B61L3/00
Filed: 1962-06-04
Abstract: 978,168. Automatic speed control systems. WESTINGHOUSE AIR BRAKE CO. June 4,1962 [July 24, 1961 No. 21552/62. Heading G3R. An automatic speed control system for e.g. a train, incorporates a "testing" circuit responsive to failure of the tachometer generator to apply the brakes and interrupt the motive power. Speed control: a three-position, polarised, differential relay DIFR. responsive to a reference voltage from a tapped resistor POT., and a speed signal from tachometer generator G, controls a reversible servomotor PMM driving a speed controller SC. At the slow limit of the controller (which may be reached going down hill) the wiper arm WA breaks contact with the sector WC, deenergizing the brake valve BVM, and the powersupply-relay POR. Testing circuit: the internal resistance of generator G, the winding of relay DIFR, and resistors Z1, Z2, form a bridge circuit A.C. energized from BX, NX, and connected to an A.C. relay CFR. Relay CT pulsed at a low frequency connects capacitor CAPI across generator G to periodically unbalance the bridge causing CFR to respond at a low frequency, periodically charging capacitor CAP2 and then discharging it through the winding of slow-release-relay CFPR which is thus maintained "up" to complete the circuit to the brake valve BVM and power-supply-relay POR. An open or short-circuit in the tachometer generator circuit which permanently unbalances the bridge, or failure of the A.C. supply BX, NX stops relay CFR vibrating and CFPR releases to de-energize BVM and POR.
Patent GB-735055-A (GB)
Title: Door fastenings
Inventor: TYRER RAY
IPC: E05B65/32
Filed: 1952-08-28
Abstract: 735,055. Door latches; door stops. WILMOT-BREEDEN, Ltd. Aug. 17, 1953 [Aug. 28, 1952; Sept. 11, 1952], Nos. 21628/52 and 22805/52. Classes 44 and 65(1). In a door fastening of the kind comprising a rotary toothed catch c and a toothed striker b engageable with the catch, means are provided which are adapted to ensure proper positioning of the door in each of the vertical directions before the catch engages the striker, which means serve also to prevent movement of the door and frame after the door has been closed. As shown, the means consist of a bell-mouthed channel d in a plate which carries the striker, which is engaged by a circular section peg f fixed to the door. The peg is of substantially the same diameter as the width of the channel. In a modification, to prevent rattle and take up wear, the peg is split transversely and a thin pad of rubber or a spring is arranged between the two halves so that the peg fits the channel tightly. In another modification a spring-loaded, slidable wedge is arranged in the top wall of the channel to prevent rattle and take up wear. In another construction the channel is of dovetail cross section with a bellmouthed entrance and is engaged by a projection of dovetail cross section, with a rounded entering end. To prevent rattle and take up wear, the projection can be made in two parts with a layer of rubber or a spring between them. Alternatively the projection is in one piece and a rubber pad is provided in the base of the channel. The peg or projection can be on the striker plate and the channel on the catch carrying part if desired. The channel can also be on a part for fixing to the door frame separate from the striker.
Patent GB-1344705-A (GB)
Title: Dropout compensator incorporating a switching circuit
Inventor: HODGE FREDERICK J
IPC: H04N5/94
Filed: 1971-04-19
Abstract: 1344705 Video drop-out compensator; transistor gating circuits MINNESOTA MINING & MFG CO 19 April 1971 [16 Feb 1970] 21777/71 Headings H4F and H3T' In a drop-out compensator for replacing a direct video signal with a delayed video signal when a drop-out occurs in the direct video signal, comprising an input terminal for receiving the direct video signal, delay means 16, Fig. 1 responsive to the direct video signal for providing the delay video signal delayed relative to the direct video signal by one or more line periods, and a drop-out detector 15 for providing control signals having first amplitude characteristics in the absence of a drop-out and second amplitude characteristics in the presence of a drop-out, a switching circuit 14 has a first input 29, Fig. 2, connected to receive the direct video signal, a second input 39 connected to receive the delayed video signal and an output 49 connected to one of the inputs in response to the control signals and a balancing circuit 50 is connected between the inputs of the switching circuit for maintaining the average values of the delayed video signal and of the direct video signal, in the absence of a drop-out, at these inputs substantially equal. A positive gate signal from detector 15 to gate inputs G1, G2 reverse biases diodes 64 and 74 and turns on the N-type gate FET's 21 and 31 so as to pass the direct video signal from S1 to output 49. The detector 15 also supplies a negative signal to gate input G3 which forward biases diode 84 so as to maintain FET 41 off. If there is a loss of video signal or if the video signal falls below a predetermined level this drop-out is detected by detector 15 which now supplies a negative signal to gate inputs G1 and G2 and a positive signal to gate input G3. Diodes 64 and 74 are forward biased so that FET's 21 and 31 turn off and diode 84 becomes reverse biased so that FET 41 conducts a delayed video signal S2 to the output 49. The balancing circuit 50 includes pi networks 51, 52, 55 and 53, 54, 55 which are critically damped so that the voltages at the drains 32 and 42 follow each other with changes in voltage, such as due to a bounce step function occurring during switching of the transistors 31 and 41. The balancing circuit 50 operates to maintain the drains 32 and 42 at substantially a constant average voltage when the output signal is switched between the input signals.